<i>Anthophora</i>
            Bees: Unusual Glycerides from Maternal Dufour's Glands Serve as Larval Food and Cell Lining

Norden, Beth B.; Batra, Suzanne W. T.; Fales, Henry M.; Hefetz, Abraham; Shaw, G. John

doi:10.1126/science.207.4435.1095

Cited by 56 publications

(34 citation statements)

References 6 publications

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“…However, cases of convergent evolution owing to similarity in ecological habits cannot be ruled out. Similar to its suggested role in the Megachilidae, the role of the Dufour's gland in producing larval food has been demonstrated in Anthophora abrupta (Norden et al 1980). In carpenter bees (Xylocopini) , Dufour's gland has been implicated in foraging site marking, i.e.…”

Section: B) Aculeatamentioning

confidence: 84%

“…In the Apidae, the role of the Dufour's gland in producing brood cell lining is found in ground dwelling bees of the genera Anthophora (Anthophorini) and Eucera (Eucerini) (Stephen and Torchio 1961, Norden et al 1980, Cane and Carlson 1984, Shimron et al 1985 and in ground dwelling carpenter bees as well (Xylocopa olivieri, Apidae: Xylocopini) (Kronenberg and Hefetz 1984). Xylocopines generally nest in wood (mostly tree trunks), and ground nesting strategy is an exception for this group.…”

Section: B) Aculeatamentioning

confidence: 99%

“…Branch lengths do not have any significance. References: 1 Rosi et al (2001), 2 Mehrnejad and Copland (2007), 3 Vardal (2006), 4 Guillot et al (1974), 5 Vinson and Guillot (1972), 6 Lawrence and Akin (1990), 7 Vinson (1978), 8 de Freitas et al (2004, 9 Marris et al (1996), 10 Huang et al (2008), 11 Cane (1981), 12 Duffield et al (1983), 13 Hefetz (1987), 14 Ayasse et al (1990b), 15 Hefetz et al (1979), 16 Albans et al (1980), 17 Cane (1981), 18 Guedot et al (2006), 19 Cane (1981), 20 Brooks and Cane (1984), 21 Ayasse et al (1990a), 22 Smith et al (1985), 23 Barrows (1975a), 24 Barrows et al (1975b), 25 Ayasse et al (1993), 26 , 27 Hefetz (1987), 28 Smith and Wenzel (1988), 29 Cane and Carlson (1984), 30 Duffield et al (1984), 31 Norden et al (1980), 32 Hefetz et al (1982), 33 Shimron et al (1985), 34 Frankie and Vinson (1977), 35 Vinson et al (1978), 36 Katzav-Gozansky et al (2002), 37 Sole et al (2002), 38 Oldroyd et al (2002), 39 Katzav-Gozansky et al (2007), 40 Malka et al (2008), 41 Tengö et al (1991), 42 …”

Section: Functionmentioning

confidence: 99%

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Function of the Dufour’s gland in solitary and social Hymenoptera

Mitra¹

2013

JHR

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The poison gland and Dufour's gland are the two glands associated with the sting apparatus in female Apocrita (Hymenoptera). While the poison gland usually functions as an integral part of the venom delivery system, the Dufour's gland has been found to differ in its function in various hymenopteran groups. Like all exocrine glands, the function of the Dufour's gland is to secrete chemicals, but the nature and function of the secretions varies in different taxa. Functions of the Dufour's gland secretions range from serving as a component of material used in nest building, larval food, and pheromones involved in communicative functions that are important for both solitary and social species. This review summarizes the different functions reported for the Dufour's gland in hymenopterans, illustrating how the Dufour's gland secretions can be adapted to give rise to various functions in response to different challenges posed by the ways of life followed by different taxa. Aspects of development, structure, chemistry and the evolution of different functions are also touched upon briefly.

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Section: B) Aculeatamentioning

confidence: 84%

Section: B) Aculeatamentioning

confidence: 99%

Section: Functionmentioning

confidence: 99%

See 1 more Smart Citation

Function of the Dufour’s gland in solitary and social Hymenoptera

Mitra¹

2013

JHR

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“…Prior to oviposition, many groundnesting bees (e.g., Colletes , Andrena , Nomia , Anthophora ) discharge a lipid-rich secretion from their voluminous abdominal Dufour's gland, typically to waterproof nest cell walls (Cane 1981) and, rarely, to fortify larval provisions (Cane and Carlson 1984;Norden et al 1980). This daily outlay of Dufour's gland secretion by many species, together with ubiquitous egg-laying demands, must impose nutritional costs on mother solitary bees that can be offset only by periodic pollen feeding.…”

Section: Introductionmentioning

confidence: 99%

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

2016

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-Pollen feeding by solitary bees has been studied mainly with their larvae, overlooking pollen feeding by adults. To address this knowledge gap, we determined the amounts and temporal (daily and lifetime) schedules of pollen consumption by freely nesting, adult females of the alkali bee (Nomia melanderi , Halictidae). Nesting females of known ages were taken at different hours of the day from nesting aggregations managed for alfalfa pollination in southeastern Washington State (USA). Each dissected bee was visually scored for pollen fill of the crop, midgut, and hindgut; we also quantified the crop's pollen capacity. Our dissections of 188 bees show that adult females ate pollen daily for at least the first 2 weeks following emergence. Most bees (85 %) had pollen boluses in one or more gut regions, indicating active pollen feeding. Pollen masses were most likely in the midgut; the daily volume consumed usually filled both the crop and midgut at least once. Full crops contained 34,000 alfalfa pollen grains, equivalent to <20 % of a full scopal load and 0.8 % of the pollen in a nest provision. Proportionately more females ate pollen as the day progressed, indicated by pollen masses in the crop. By early evening, crops of all bees were filled with pollen. Our study reveals the dietary importance of regular pollen feeding for nesting adult female solitary bees, and not just their larvae, with implications for bee foraging ecology, dietary physiology, reproduction, toxicology, and pollination ecology.Apiformes / Apoidea / bees / Hymenoptera / foraging

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“…In solitary bees the Dufour's gland has many functions, including the production of a hydrophobi c material used as nest cell lining (CANE, 1981;KRONENBERG & HEFETZ, 1984), pheromones for sex (SMITH et al, 1985) or nestmate attraction (HEFETZ, 1990), nest entrance marking (SHIMRON et al, 1985), trail pheromones (VINSON et al, 1978) and also as larval food (NORDEN et al, 1980). The role of the Dufour's gland in social bees is not certain yet.…”

Section: Introductionmentioning

confidence: 99%

Changes in the Morphology and Ultrastructure of the Dufour's Gland During the Life Cycle of the Bumble Bee Queen, Bombus Terrestris L. (Hymenoptera: Bombini)

et al. 1999

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The Dufour's gland is found closely associated with the sting apparatus of all female hymenopterans, playing multiple roles among bees. In some species of Bombus the gland may be involved in production of nestmate recognition pheromones, but in B. terrestris its function is not certain yet. The morphology of the Dufour's gland of B. terrestris queens and the ultrastructural features of its cells were studied in different ages and behavioural stages using routine transmission electron microscopy. Measurements of the length and the diameter of the gland in the same conditions were also made. The Dufour's gland of the queen increases signi cantly in size (both in length and in diameter) with age and reproductive activity. The ultrastructural features of the gland show electrondense material that comes from the haemolymph. This material is also present in the intercellular spaces, and is conducted to the subcuticular space, to be released directly into the glandular lumen. Hence at least part of the secretion is probably taken up directly from the haemolymph. The ultrastructural features indicate a more active phase of the gland corresponding to the period of egg-laying of the queen, and a decrease in activity when the queen is in hibernation as well as after the competition point. In conclusion, the gland is probably involved in reproduction, more speci cally, in the marking of eggs.

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Anthophora Bees: Unusual Glycerides from Maternal Dufour's Glands Serve as Larval Food and Cell Lining

Cited by 56 publications

References 6 publications

Function of the Dufour’s gland in solitary and social Hymenoptera

Function of the Dufour’s gland in solitary and social Hymenoptera

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

Changes in the Morphology and Ultrastructure of the Dufour's Gland During the Life Cycle of the Bumble Bee Queen, Bombus Terrestris L. (Hymenoptera: Bombini)

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